基于力矩补偿与分配的多操纵面飞机飞行控制设计

Flight control based on the moment compensation and allocation for aircraft with multiple control effectors

中文关键词  多操纵面飞机  控制分配  非线性控制  飞行控制

英文关键词  aircraft with multiple control effectors  control allocation  nonlinear control  flight control

中文摘要

      针对多操纵面飞机舵面冗余和强非线性气动特征, 提出了一种基于力矩补偿与分配的非线性飞行控制系统设计方法, 采用指令－力矩－舵面的间接形式, 外环采用模型跟踪方法生成满足飞行品质要求的力矩指令, 内环采用力矩补偿结合控制分配的设计方法, 控制各舵面实现期望控制力矩. 以革新性操作效率器(ICE)飞机为对象进行了仿真验证, 结果表明力矩补偿与分配系统可实现准确的力矩跟踪, 系统对参数的变化有较强适应能力, 所设计的飞行控制系统能够依据参考模型对控制指令进行跟踪, 各控制通道间耦合被有效抑制.

英文摘要

      The problems of the redundant effectors and the nonlinear aerodynamics of an aircraft with multiple controleffectors are studied. A new nonlinear flight control system design method is presented based on the control-allocation and the moment-compensation. The indirect configuration of command-moment-effectors is employed. Based on the model-following method, the outer-loop generates the moment command to meet the requirements on the flight quality. Combining the control-allocation and the moment-compensation in design, the inner-loop controls the effector deflections to implement the desired moment commands. Simulation test of the above method is carried on the innovative control effectors(ICE) aircraft. The results show that the system of moment compensation and allocation realizes the accurate tracking of desired moments; and the system shows good adaptability when the system parameters are changed. The designed flight control system can track the control-command based the reference model; and the coupling between control channels are effectively suppressed.